Fewer genAI clones of "someone else's specific game" should flood the net going forwards, as Anthropic tell Claude to stop messing with some stuff other people own

Anthropic has instructed Claude to refuse requests to recreate or clone existing games. The company added restrictions to Claude Code's Opus 5.5 model to block users from using the tool to infringe on intellectual property, according to Anthropic staffer Addy Osmani.

"We added two sentences to Claude Code's prompt on Opus 5.5 to steer it away from recreating someone else's specific game because using Claude to infringe IP is against our usage policy," Osmani wrote.

The change allows Claude to continue generating original games and genre games built from user designs and assets. Osmani stated that original games, genre games, and games built from users' own designs and assets are meant to keep working.

The move targets the spread of AI-generated game clones that have flooded the internet. Bethesda has taken legal action to remove an AI-generated Fallout game from the net. The restriction aims to prevent users from generating slop versions of existing titles and passing them off as original work.

Anthropic trained Claude by scraping publicly available data from the internet, raising questions about the consistency of the company's stance on intellectual property use.